Cooperative cognitive approach, apparatus and system based on wireless mobile network

Abstract

The invention discloses a cooperative cognitive approach based on wireless mobile network, comprising the following steps: an unauthorized system dividing each two unauthorized clients existing in the system into one group, and determining the data reliability of respective unauthorized client in each group contained in the dividing result, and acquiring the environmental information of each group acquired on the basis of the cooperative cognition according to the data reliability, and combining the information to acquire the final environment sensory result; and the data reliability in inverse proportion to the distance between the unauthorized client and the authorized base station is used for regulating the value of environment information acquired by the unauthorized client. Thus, thereliability of the environment information acquired on the basis of cooperative cognition is improved after that each two unauthorized clients are combined; on the basis, the environment information acquired by the respective combination are combined to acquire the final environment sensory result, and the accuracy of environment sensory result is further improved. The invention also discloses a communication apparatus and a communication system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a cooperative cognitive method, device and system based on a wireless mobile network. Background technique [0002] With the development of wireless mobile services, wireless spectrum has become an indispensable and precious resource in modern society. Research shows that using the existing spectrum authorization mechanism, the spectrum utilization rate of authorized users is only between 15% and 85%. In order to effectively improve the utilization rate of spectrum resources, cognitive radio (CognitiveRadio) technology is used in the existing technology to realize the secondary utilization of spectrum resources, that is, when authorized users do not occupy their authorized spectrum resources, unlicensed users are allowed to use the spectrum resources. Spectrum resources, so that licensed users and unlicensed users share spectrum resources. For example, in a WRAN network based o...

AI Technical Summary

Problems solved by technology

[0013] When Ghasemi technology is used, there are two situations. The first one is: based on the AND rule, if and only when all unlicensed users detect the data of authorized users, it is determined that the authorized spectrum resources have been occupied by authorized users; using this method Will seriously affect the normal communication of authorized users

The second is: based on the OR rule, when any unlicensed user detects the data of the authorized user, it is determined that the authorized spectrum resource has been occupied by the authorized user. Using this method is still to limit the increase in spectrum utilization.

[0014] To sum up, none of the existing cooperative cognitive methods can meet the needs of wireless mobile networks. Therefore, it is necessary to provide a new cooperative cognitive method to improve the accuracy of environmental information perceived by unauthorized users.

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